Sets the index and type to retrieve documents from.
public from ( string | array $index, string | array $type = null ) | ||
$index | string | array | The index to retrieve data from. This can be a string representing a single index or a an array of multiple indexes. If this is `null` it means that all indexes are being queried. |
$type | string | array | The type to retrieve data from. This can be a string representing a single type or a an array of multiple types. If this is `null` it means that all types are being queried. |